The IN76 is a very strong contender right now (IMO) as it is DLP, has very little offset, and a nice bright image compared to a good bit of the competition.
The offset, or how much above/below, the screen you MUST put the projector to avoid digital keystone correction is a big thing. I believe that the IN76 needs to be about 7 or 8 inches above the top edge (or below the bottom edge) of the screen for a 100" diagonal image. Add a projector ceiling mount and that bumps the screen down so it is about a foot off the ceiling. With 8 foot ceilings, this is pretty close to ideal. Maybe even a bit high. So, the main issue is getting the wiring to the required projector location which is, for a 100" diagonal, 11 to 14 feet from the lens to the screen.
Let's be very clear, since the question comes up constantly:
If you have seen a $10,000 projector setup in a nice A/V store... write down the model number, then look up the specifications on it. You will find that almost all of those top dollar projectors are just a SMALL bit better than the $2K projectors are. Typically the same brightness, similar DLP or LCD chip set, similar processing, etc. More expensive DLPs include lens shift (big plus for some) and will have better 'all-around' quality which includes, but is not always, better processing, better optics, better case design, cooler running temperature, quieter fans, better remote, added connectivity, more setup versatility, more accurate colors, better colors out of the box, etc., etc.
But, all those added features aren't 'brightness'. They aren't WAY better, but just a very tiny bit better in a lot of areas. Maybe a 10% overall improvement... But, an added cost of $8,000 or more at times.
As for the screen - if you are going electric, tab-tensioned, then I strongly encourage it! I have seen all three, I have used manual non-tensioned... and ruined it in a couple of years. Now I have electric tab-tensioned (Draper) and am very happy. Would I recommend Draper? Sure, but I believe that DaLite is a bit better for overall quality. I consider that to be a very big deal as you simply don't even want to have to deal with your screen again once it is installed.
Of course - fixed mount, on-wall screens are by far the best quality overall that I have ever seen. Deep velvet borders and a rigid frame design allow for a very stable and perfect viewing surface every time. If you can figure it out for the room, it is worth it.